Metal founding – Process – Shaping a forming surface
Reexamination Certificate
2007-06-19
2007-06-19
Lin, Kuang Y. (Department: 1725)
Metal founding
Process
Shaping a forming surface
C164S516000, C164S361000, C164S133000
Reexamination Certificate
active
11343370
ABSTRACT:
A method for investment casting includes the steps of positioning a base plate relative to a die; molding a first material between the die and at least a first surface portion of the base plate; securing one or more patterns to the base plate, the one or more patterns comprising a second material; applying one or more coating layers over at least portions of the one or more patterns and at least a portion of the first material; substantially removing the first material through an interior receptacle of a manifold body and the second material through an exterior receptacle of the manifold body to leave one or more shells formed by the coating layers; removing said base plate; introducing molten metal to the one or more shells through the interior receptacle of the manifold body; permitting the molten metal to solidify; and destructively removing one or more investment casting molds.
REFERENCES:
patent: 5244187 (1993-09-01), Manginelli
Bullied Steven J.
Reilly P. Brennan
Bachman & LaPointe P.C.
Lin Kuang Y.
United Technologies Corporation
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